Home / 1,325.20-1,826.46-1,263.64

Finding the Fourth Proportional to 1,325.20, 1,826.46 and 1,263.64

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Solution

The fourth proportional to 1,325.20, 1,826.46 and 1,263.64 is: 1,741.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.20 : 1,826.46 = 1,263.64 : x
  2. Step 2: Convert to fraction form
    1,325.20/1,826.46 = 1,263.64/x
  3. Step 3: Cross multiply
    1,325.20x = 1,826.46 × 1,263.64
  4. Step 4: Simplify right side
    1,325.20x = 2,307,987.91
  5. Step 5: Solve for x
    x = 2,307,987.91/1,325.20
  6. Step 6: Final answer
    x = 1,741.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.